How To Measure Altitude of your rocket

[@PracticalEngineeringChannel]

Awesome video. Very well discussed.

[@AirCommandRockets]

Cheers +Practical Engineering :)

[@tabberbarlow6795]

So much information in one video! Thank you!

[@RhyssRocketProject]

Love that intro. Also great job, me and my friend cant wait to get back to rocketry and see your rockets fly.

[@AirCommandRockets]

Thanks Rhys, we look forward to catching up. :) What kind of rockets will you fly at the next launch?

[@emilyzhang1764]

Great video, it was very helpful! I was wondering why we need to put the camera 90 degrees from each other to reduce the error. Wouldn't it work better if the cameras were 180 degrees from each other? Thank you!

[@AirCommandRockets]

I was about to write that they would have the same error if the rocket flies towards one of the cameras, but having thought about it a little, I think you are right. In one camera the rocket would be lower, but higher in the other. If the rocket flies in an arc perpendicular to both cameras, then they would both measure the same altitude. Good observation! Thanks

[@emilyzhang1764]

@@AirCommandRockets thanks for the quick reply and clarification! :)

[@adrianjezierski8093]

Ordering alt-meter for 15$ after this video. Thx, this was all I was looking for. I was wondering if the measuring will be hard but if its just putting something like a pen-drive with a screen in a rocket im reliefed

[@aligasco7206]

reference height arduino I want to know my room floor level how much height from other room in which video solution

[@ayushkaiwart2451]

Thanks for sharing this information. Its really helpful.

[@MultiSegelflieger]

Hey George! As always: Very good Video! And nice New Intro

[@AirCommandRockets]

Cheers MultiSegelflieger, we had fun making this video. :)

[@dutchairwaterrockets7366]

I'm also building waterrockets and to measure altitude I still use a inclinometer.As I know now it isn't very accurate and we also use simulators to have a idea how high the rocket approximately flew.Maybe I wil buy a Digital altimeter later in the future.Wim, Dutch Air waterrockets

[@teamlucrockets]

Hi George That's a really informative video,well explained and a nice intro. well done.

[@AirCommandRockets]

Thanks teamlucrockets. :) We had fun making this video.

Interesting video! :) I used a similar method. I build a wood construction with graduations every cm and put a camera on it. Than with the Thales' theorem I calculated the height of the flight. Thanks to your video I know now that it's very inaccurate. ^^ Next time I will test it with 2 axes.

[@jesuisjustinian]

Nice video! However, would it be practical to use the 2nd kinematic formula to mathematically determine the altitude given by h= x + v*t +1/2*g*t^2 , considering the water rocket begins at rest on a windless day at 0 initial altitude? We would only need to calculate the time needed from beginning to end, then take half of the value to plug into the formula.

[@AirCommandRockets]

Indeed you can mathematically predict how high the water rocket will go. We normally use on-line water rocket simulators to do that that factor in a whole lot of other parameters as well. They can be fairly accurate, but ultimately if you need to know how high the rocket actually went, you need to measure it.

[@alexfourie6491]

I have two questions: Does the altimeter one allow me to download all the data to my laptop? And is there by any chance an altimeter cheaper than 50 dollars that allow me to download the data to my laptop? Thanks

[@AirCommandRockets]

No, the AltimeterOne is a peak only altimeter, it just gives you the peak altitude, there is no other data to download. I don't know of other commercial altimeters that record flight data and are under $50. Perhaps have a look at the zLog altimeter.

[@Roblox_Videos359]

Rather than using two inclinometers at 90degrees, it would be more accurate to use two on opposite sides. Any drift in either direction would average out. If you have them at 90 degrees, the rocket could drift towards or away from both.

[@RaketfuedrocketsDeutschland]

Hello George, very interesting video! We used an inclinometer for a long time, but never have shared the results because we knew that it is inaccurate. We're now pretty happy with our electronic altimeters. ;) Also very cool intro of your video! Keep it up! Julian from Team Raketfued

[@AirCommandRockets]

Thanks Julian, yes the inclinometer technique is not very accurate. This was actually the first time we've ever tried using it. Windy days also make it harder to keep the hanging weight still. :)

[@JoshieDad]

Awesome video!

[@jeremy000]

Great stuff George. Thanks heaps for sharing

[@AirCommandRockets]

Thank you Jeremy :)

[@lvhao5105]

great job

[@WATERROCKETSCLUB]

Hello! Very interesting, exhaustively informative video.

[@AirCommandRockets]

Thanks Water Rockets Club :)

[@jsbrocketry1728]

Hello Air Command. Really great video once again, interesting stuff. I tried using the inclinometer method a while ago and always got weird values. Those diagrams are ace! When are you going to Fly the Polaron G2 with Boosters again? :D Also, it would be great if you could do this kind of video on why foam increases the altitude- I know it is complicated! Jamie B

[@AirCommandRockets]

Thank you Jamie. We were going to fly the G2 about a month ago at our high power launch site in Mullaley, but really windy conditions (30km/h+) on the day prevented us from setting it up. We ended up launching only smaller ones. We will try again at the Mullaley launch site in a few months. We'll consider doing a foam video, thank you for the suggestion. We still have a backlog of other videos we would like to finish first. This one was from February. :)

[@q300SBB]

Hi George, just a quick question. After our basic bottle rocket has flown and is retrieved, we notice that if we squeeze the bottle a fog comes from the opening, what causes this fog?

[@AirCommandRockets]

Hi Craig. When you launch your rocket the rapid depressurisation causes the temperature to drop suddenly inside the rocket, normally well below freezing and the humid air inside the rocket condenses forming a cloud.

[@q300SBB]

+AirCommandRockets thanks George, I really appreciate you getting back to me..

[@MichaelFyodoroff]

Yay a video!

[@Humberto-xy4ox]

God bless you protect you free from all hands thank you very much I was going crazy

[@damianverhoeks3544]

Nice i'am make also some water bottle rockets

[@AirCommandRockets]

Excellent, hope you're having fun with them too. :)

[@prakashnokumar976]

please translate in hindi